GB975255A - Improvements in or relating to ultrasonic sensing elements - Google Patents
Improvements in or relating to ultrasonic sensing elementsInfo
- Publication number
- GB975255A GB975255A GB40740/60A GB4074060A GB975255A GB 975255 A GB975255 A GB 975255A GB 40740/60 A GB40740/60 A GB 40740/60A GB 4074060 A GB4074060 A GB 4074060A GB 975255 A GB975255 A GB 975255A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- coil
- magnetostrictive
- polarized
- nov
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/08—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
975,255. Magrietostrictive devices. CAVITRON ULTRASONICS Inc. Nov. 28, 1960 [Nov. 27, 1959], No. 40740/60. Heading H4J. A magnetostrictive receiver comprises a rod or wire 18 of magnetostrictive material adapted to be rigidly secured to a vibrating body, and a separate member comprising a magnetic shell 48 and a pick-up coil 20 within which member the rod can vibrate freely. As shown in Figs. 2 and 3, the rod 18 is polarized by direct current in coil 20 derived by rectification from an alternating current source. Alternatively the rod may be polarized by a permanent magnet. The induced e.m.f. is used to drive a voltmeter 44 after amplification at 40. The magnetic circuit of the rod 18 is amplified by the shell 48 comprising two discs 50, 52 of ferrite recessed to take the coil 20 and held together by an aluminium housing 62. In Figs. 4, 5 the housing includes a permanent magnet 90 and the magnetostrictive element 18a is rectangular in section. The element 18 may be tubular. A magnetostrictive element 18c, Fig. 7, in the form of a dumb-bell is mounted within a ferrite cylinder 10c by means of rubber rings 98 fitting annular grooves 10 in the two quarter-wave cylindrical ends 92, 94 of the element. The coil 20 is wound around the neck of the element.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85593259A | 1959-11-27 | 1959-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB975255A true GB975255A (en) | 1964-11-11 |
Family
ID=25322462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB40740/60A Expired GB975255A (en) | 1959-11-27 | 1960-11-28 | Improvements in or relating to ultrasonic sensing elements |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1274221A (en) |
| GB (1) | GB975255A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862495A (en) * | 2019-04-11 | 2019-06-07 | 贵州电网有限责任公司 | A kind of communication system of power grids equipment magnetostriction loudspeaker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115255425A (en) * | 2022-08-30 | 2022-11-01 | 航天特种材料及工艺技术研究所 | Sectional type remote induction power supply vibration auxiliary machining system of drilling and boring machine |
-
1960
- 1960-11-25 FR FR844984A patent/FR1274221A/en not_active Expired
- 1960-11-28 GB GB40740/60A patent/GB975255A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862495A (en) * | 2019-04-11 | 2019-06-07 | 贵州电网有限责任公司 | A kind of communication system of power grids equipment magnetostriction loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1274221A (en) | 1961-10-20 |
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